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Noninvasive continuous monitor of arterial blood pressure waveform

  • US 4,873,987 A
  • Filed: 06/30/1988
  • Issued: 10/17/1989
  • Est. Priority Date: 06/30/1988
  • Status: Expired due to Fees
First Claim
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1. A method of continuously, noninvasively measuring blood pressure, said method comprising the steps of:

  • noninvasively determining at least discrete systolic and diastolic blood pressure values;

    simultaneously, noninvasively monitoring the patient with a waveform signal means to generate a sample continuous non-pressure waveform signal;

    inputting said discrete systolic and diastolic blood pressure values and said sample continuous non-pressure waveform signal to a microprocessor;

    calculating at least systolic and diastolic points for said sample continuous non-pressure waveform signal;

    calibrating said systolic and diastolic points with said systolic and diastolic blood pressure values, respectively, and storing said calibrated information;

    continuously, noninvasively monitoring said patient with said waveform signal means to generate a continuous non-pressure waveform signal;

    using said calibrated information to transform said continuous non-pressure waveform signal into a continuous blood pressure waveform.

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